Resolved How to use namespaces?

I can find little to no useful information to namespaces. I need to reference variables in my managerscript alot and my whole structure is a very confusing and complicated cobweb of references, so I thought I have a bright idea and turn this class into a namespace, something like this:

Code (CSharp):

1. namespace example {
2.     public class Something : Monobehaviour
3.     {
4.          public float numberA;
5.     }
6. }

and from another script, I thought I could simply access the variables via:

Code (CSharp):

1. using example;
2.  
3. public class SecondScript : MonoBehaviour
4. {
5.     Something st;
6.     float numberZ;
7.  
8.    private void Start
9.    {
10.       numberZ= st.numberA;
11.       //numberZ = numberA not working either
12.    }
13. }

which turns into a NullReferenceException error!? So... me very confused..

 

Namespaces are purely for code organisation.

You still need a concrete reference to other instances as per normal. In your second code's case,

Something st;

is never assigned hence being null.

 

I dont think namespaces are what you are looking for.

Namespaces are used so you can safely use class names without overlap with other plugins or unity classes.

E.g

Code (CSharp):

1. Namespace SpaceA
2. {
3.    Class ClassA
4.    {
5.    }
6. }
7.  
8. Namespace SpaceB{
9.    Class ClassA
10.    {
11.    }
12. }
13.  
14. Class ClassB
15. {
16.    SpaceA.ClassA var1 = new SpaceA.ClassA();
17.    SpaceB.ClassA var2 = new SpaceB.ClassA();
18. }
19.  

What you are looking for is the singleton pattern, which is just a fancy term for a class with a singular instance.

The simplest way to implement it in unity is as follows:

Code (CSharp):

1. Public class Something : MonoBehaviour
2. {
3.    Static Something m_instance;
4.    Public int TestVar;
5.  
6.    void Awake()
7.    {
8.       m_instance = this;
9.    }
10.  
11.    Public static Something GetInstance()
12.    {
13.       return m_instance;
14.    }
15. }
16.  
17. //to use it
18. class OtherClass : MonoBehaviour
19. {
20.    Something m_something;
21.  
22.    void Start()
23.    {
24.       //safe to grab here since instance is set in somethings awake
25.       m_something = Something.GetInstance();
26.       m_something.TestVar = 5;
27.    }
28. }

Something needs to be placed on an object in your scene & its only safe to use the GetInstance after Something Awake has been called. Thats why OtherClass does it in Start.

 

Hmmm, okay, thanks, looks like I completely misunderstood what namespace are there for... I knew about singletons but never used them, since my projects aren't big. well I guess it's time to use them anyway.
Edit: I still get NullReference Errors on some of my scripts, which apparently can't find the singleton... no clue why but I will glue something together... somehow...
Edit2: Those scripts use onEnabled, that seems to be the issue.